The systemd service doesn't use runlevels as SysV or Upstart do. The alternatives for systemd are called targets. Their purpose is to group a set of systemd units (not only services, but also sockets, devices, and so on) through a chain of dependencies.
Managing targets with systemd is pretty simple, as shown through the following steps:
List all target units, as follows:
~]# systemctl list-unit-files --type target UNIT FILE STATE anaconda.target static basic.target static bluetooth.target static cryptsetup.target static ctrl-alt-del.target disabled default.target enabled ... sysinit.target static system-update.target static time-sync.target static timers.target static umount.target static 58 unit files listed. ~]#
This list shows all target units available followed by information regarding whether...